CVE-2024-50152 (GCVE-0-2024-50152)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2025-05-04 09:47
VLAI?
Title
smb: client: fix possible double free in smb2_set_ea()
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 433042a91f9373241307725b52de573933ffedbf , < b1813c220b76f60b1727984794377c4aa849d4c1 (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < c9f758ecf2562dfdd4adf12c22921b5de8366123 (git)
Affected: 4f1fffa2376922f3d1d506e49c0fd445b023a28e , < 19ebc1e6cab334a8193398d4152deb76019b5d34 (git)
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    Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.6.59 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
          ],
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          "vendor": "Linux",
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          "vendor": "Linux",
          "versions": [
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              "version": "6.11.6",
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              "version": "6.12",
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      ],
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          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.6.32",
                  "vulnerable": true
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix possible double free in smb2_set_ea()\n\nClang static checker(scan-build) warning\uff1a\nfs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.\n 1304 |         kfree(ea);\n      |         ^~~~~~~~~\n\nThere is a double free in such case:\n\u0027ea is initialized to NULL\u0027 -\u003e \u0027first successful memory allocation for\nea\u0027 -\u003e \u0027something failed, goto sea_exit\u0027 -\u003e \u0027first memory release for ea\u0027\n-\u003e \u0027goto replay_again\u0027 -\u003e \u0027second goto sea_exit before allocate memory\nfor ea\u0027 -\u003e \u0027second memory release for ea resulted in double free\u0027.\n\nRe-initialie \u0027ea\u0027 to NULL near to the replay_again label, it can fix this\ndouble free problem."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:47:22.979Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123"
        },
        {
          "url": "https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34"
        }
      ],
      "title": "smb: client: fix possible double free in smb2_set_ea()",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50152",
    "datePublished": "2024-11-07T09:31:28.733Z",
    "dateReserved": "2024-10-21T19:36:19.959Z",
    "dateUpdated": "2025-05-04T09:47:22.979Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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